Believed to be possibly Albatross Island in the Cargados Carajos island group in the Indian Ocean, a territory of Mauritius. Like all the settled islands in the group, the population is transient and works the islands part of the year.

The notes would have been most likely picker checks cashed in at the company store for supplies or redeemed for cash. The use of the denomination, Hana, could possibly be due to some nations disallowing a local currency from carrying a value in an established currency.